Merge pull request #85 from gelsner/master

Supporting musicvideos/homevideos in "Recently added"- and "Active"-widg...
Added play from stream back from BluRay ISOs

Should not break transcoding stuff
Added MB3.Action property for 'DialogVideoInfo.xml'
Added placeholder keys for action

Not sure if real actions are needed here - but if no key is present
causes exception
Show the corresponding media stubs message
Correct URL for media stubs
Merge pull request #88 from azeos/fix-media-stubs

Fix media stubs
Fix missing genres crash
Updated change log in prep for XBMC submit
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser.XBMC